APA Dictionary of Psychology

a broad umbrella term for individuals whose sexual orientation, sexual development, gender identity, gender expression, or other sexual or gender characteristics differ from what is considered typical or normative in a given society. Sexual and gender minorities is often used as a broad term for LGBTQ+ and gender-diverse populations, and is used in research and clinical contexts to describe populations that may share common social, psychological, and health-related experiences, particularly those related to stigma, minority stress, and identity development.